1. Discovery of Three Jet Events and a Test of Quantum Chromodynamics at PETRA Energies
- Author
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Barber, D. P., Becker, U., Benda, H., Boehm, A., Branson, J. G., Bron, J., Buikman, D., Burger, J., Chang, C. C., Chen, H. S., Chen, M., Cheng, C. P., Chu, Y. S., Clare, R., Duinker, P., Fang, G. Y., Fesefeldt, H., Fong, D., Fukushima, M., Guo, J. C., Hariri, A., Herten, G., Ho, M. C., Hsu, H. K., Hsu, T. T., Kadel, R. W., Krenz, W., Li, J., Li, Q. Z., Lu, M., Luckey, David, Ma, D. A., Ma, C. M., Massaro, G. G. G., Matsuda, T., Newman, H., Paradiso, Joseph A., Poschmann, F. P., Revol, J. P., Rohde, M., Rykaczewski, H., Sinram, K., Tang, H. W., Tang, L. G., Ting, Samuel C. C., Tung, K. L., Vannucci, F., Wang, X. R., Wei, P. S., White, M., Wu, G. H., Wu, T. W., Xi, J. P., Yang, P. C., Yu, X. H., Zhang, N. L., and Zhu, R. Y.
- Subjects
+QUARK+ANTIQUARK%22">ELECTRON POSITRON --> QUARK ANTIQUARK ,DESY PETRA STOR ,MAGNETIC SPECTROMETER: MARK J ,MULTIPLE PRODUCTION: HADRON ,+QUARK+ANTIQUARK+GLUON%22">ELECTRON POSITRON --> QUARK ANTIQUARK GLUON ,GLUON: JET ,COLLIDING BEAMS: ELECTRON POSITRON ,EXPERIMENTAL RESULTS ,JET: THRUST ,QUARK: JET ,JET: ELECTROPRODUCTION ,+%28N%29HADRON%22">ELECTRON POSITRON --> (N)HADRON ,17.0: 27.4: 30.0: 31.6 GEV-CM: ((3)): ((4)) ,FINAL STATE: (3JET) ,ELECTROPRODUCTION: JET ,HADRON: MULTIPLE PRODUCTION ,ANNIHILATION: ELECTRON POSITRON ,ENERGY SPECTRUM ,ELECTRON POSITRON: COLLIDING BEAMS ,QUANTUM CHROMODYNAMICS: VALIDITY TEST ,JET: ENERGY ,QUARK ANTIQUARK: PAIR PRODUCTION ,INTERPRETATION OF EXPERIMENTS ,ELECTRON POSITRON: ANNIHILATION ,PAIR PRODUCTION: QUARK ANTIQUARK - Abstract
Physical review letters 43(12), 830 - 833 (1979). doi:10.1103/PhysRevLett.43.830, We report the analysis of the spatial energy distribution of data for e+e−→hadrons obtained with the MARK-J detector at PETRA. We define the quantity 'oblateness' to describe the flat shape of the energy configuration and the three-jet structure which is unambiguously observed for the first time. Our data can be explained by quantum chromodynamic predictions for the production of quark-antiquark pairs accompanied by hard noncollinear gluons., Published by APS, College Park, Md.
- Published
- 1979
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